<div>
  <p>The Syslog format used to send the messages.<br>
  RFC5424: The default format.<br>
  RFC3164: The format supported by the <a href="https://www.elastic.co/guide/en/logstash/current/plugins-inputs-syslog.html">Logstash Syslog input plugin</a>. </p>
</div>
